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适用于隧道环境的二元相控阵天线系统

钟选明 张东民 廖成 杜振 熊洁

钟选明, 张东民, 廖成, 等. 适用于隧道环境的二元相控阵天线系统[J]. 强激光与粒子束, 2020, 32: 053006. doi: 10.11884/HPLPB202032.190423
引用本文: 钟选明, 张东民, 廖成, 等. 适用于隧道环境的二元相控阵天线系统[J]. 强激光与粒子束, 2020, 32: 053006. doi: 10.11884/HPLPB202032.190423
Zhong Xuanming, Zhang Dongmin, Liao Cheng, et al. Two-element phased array antenna system suitable for tunnel environment[J]. High Power Laser and Particle Beams, 2020, 32: 053006. doi: 10.11884/HPLPB202032.190423
Citation: Zhong Xuanming, Zhang Dongmin, Liao Cheng, et al. Two-element phased array antenna system suitable for tunnel environment[J]. High Power Laser and Particle Beams, 2020, 32: 053006. doi: 10.11884/HPLPB202032.190423

适用于隧道环境的二元相控阵天线系统

doi: 10.11884/HPLPB202032.190423
基金项目: 国家自然科学基金项目(61771407);铁二院横向项目(2018H00665)
详细信息
    作者简介:

    钟选明(1972—),男,博士,从事天线设计及微波成像研究;xm_zhong@163.com

    通讯作者:

    张东民(1990—),男,博士研究生,从事天线设计及电磁兼容研究;zhangdongmin@my.swjtu.edu.cn

  • 中图分类号: TN828.6

Two-element phased array antenna system suitable for tunnel environment

  • 摘要:

    为了满足在隧道环境中实现高速率、高质量无线通信的迫切需求,研究了适用于隧道环境的高增益天线,提出了利用二元相控阵天线系统提高隧道内信号传输质量的新方法。相控阵天线系统由两个高增益天线单元及一个移相器组成,通过移相器调整其中一个天线单元的相位,使隧道内合成电场的最小值幅值达到最大,提升信号的平均场强。仿真结果表明:与单个天线发射信号相比,在3 000 m隧道轴向传播范围内,相控阵天线系统发射信号合成电场的最低电平最少提升了19.6 dB;与两个天线同时发射信号相比,最低电平最少提升了12.4 dB,取得较好分集优化效果,消除多径效应导致的深度衰落,解决了隧道环境中存在的通信问题。

  • 图  1  天线主辐射单元结构示意图

    Figure  1.  Structure diagram of the antenna main radiation unit

    图  2  微带八木天线结构示意图

    Figure  2.  Structural schematic diagram of microstrip Yagi antenna

    图  3  微带八木天线S11曲线图

    Figure  3.  Simulated S11 curve of microstrip Yagi antenna

    图  4  微带八木天线增益随频率变化曲线图

    Figure  4.  Curve of microstrip Yagi antenna gain vs frequency

    图  5  相控阵天线系统组成与安装示意图

    Figure  5.  Composition and installation diagram of phased array antenna system

    图  6  铁路单洞双轨隧道横截面示意图

    Figure  6.  Cross section diagram of railway single-hole and double-track tunnel

    图  7  基于隧道环境电磁仿真模型的相位优化流程图

    Figure  7.  Phase optimized flow chart based on the tunnel environment electromagnetic simulation model

    图  8  隧道内列车所在位置A与B处的电场强度分布图

    Figure  8.  Electric field intensity distribution at locations A and B of train in tunnel

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    [4] 曹思聪. 受限空间中的新型天线设计及其电波覆盖特性的研究[D]. 北京: 北京交通大学, 2016.

    Cao Sicong. Design of the novel antennas for confined spaces and research on the characteristics of radio wave coverage[D]. Beijing: Beijing Jiaotong University, 2016
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  • 被引次数: 0
出版历程
  • 收稿日期:  2019-11-08
  • 修回日期:  2020-01-17
  • 刊出日期:  2020-02-10

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